Cheap flights from Calgary to Montreal from C$ 137

The cheapest month to fly to Montreal from Calgary is in April. Flight prices, which tend to average around C$ 322, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Montreal from Calgary during May instead. Flights to Montreal in May, while not as cheap as those in April, still average around C$ 325.

Our data shows that Friday is the least expensive day to fly to Montreal. Tickets to fly out on this day can be as low as C$ 520. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Calgary to Montreal for around C$ 814.

Our data shows that the cheapest Calgary to Montreal flights are usually those with departure times in the evening. Our users have found flights to Montreal in the evening for as low as C$ 484. Flights at noon are often more expensive with an average ticket price of C$ 1,100.

Fly from Calgary to Montreal Pierre Elliott Trudeau Intl for the best Calgary - Montreal flight prices

You are more likely to see cheaper flights to Montreal from Calgary when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around C$ 421 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal from Calgary for as low as C$ 354 on momondo.

There are 3 cabin classes available to choose from on Calgary to Montreal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 23% on your flight if you consider stops on a Calgary to Montreal flight.

As of February 2026, prices for Calgary to Montreal flights are approximately 58% more expensive when compared to flights at the same time last year.

WestJet, Air Canada, and Porter Airlines are the most popular carriers operating from Calgary to Montreal

Porter Airlines, Air Canada and WestJet are the top three most popular airlines that fly to Montreal from Calgary according to our data. Porter Airlines is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Montreal. Keep in mind that there are 4 different airlines that fly to Montreal on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Calgary and Montreal have experienced a delay on any given week. The average delay length over the past 12 months has been 160 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, Porter Airlines has had the least delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

Toronto (YYZ) was the most common stop: 96% of momondo users choosing one-stop flights on this route connected there.

Flights via Toronto (YYZ) offer the lowest average round-trip price of C$ 366.

Flights connecting via Winnipeg (YWG) have the shortest average one-way travel time: 6h 14m.

Winnipeg (YWG) has the shortest average layover time for this route: 1h 18m.

10 flights are operational daily from Calgary to Montreal as of February 2026. The most popular departure time for this route is 5:00a.m., with 71% of flights per day taking off in the morning.

70 flights are operational weekly from Calgary to Montreal as of February 2026. The most popular departure day for this route is Wed, with 26% of flights per week taking off on this day.